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Add BIP390 `musig()` descriptor key expressions - #954

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starius wants to merge 18 commits into

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starius:musig2

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Add BIP390 `musig()` descriptor key expressions#954
starius wants to merge 18 commits into
rust-bitcoin:masterfrom
starius:musig2

Commits on Oct 14, 2026
- plan: fix missing signatures for fresh Taproot script spends
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  44745fd
- descriptor: reject definite keys deeper than BIP32 allows
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  73a6c6b
- descriptor: reject keys deeper than BIP32 allows when parsing
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  deac657
- miniscript: move the per-node context checks into a helper
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  e6760d1
- descriptor: check the script context in constructors
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  cccc880
- test(descriptor): check the script context in constructors
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  2da8ac5
- policy: return leaf errors from compile_tr_private_experimental
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  52d3918
- miniscript: check pk_h keys against the script context
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  a6f3137
- test(miniscript): check pk_h keys against the script context
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  431d83d
- expression: parse descriptor key subtrees
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  dc9077b
- descriptor: add musig key model
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  b446c86
- descriptor: derive musig aggregate keys
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  fe7ffc6
- descriptor: expose musig helper APIs
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  6429ebf
- descriptor: parse musig secret participants
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  72e5fb2
- descriptor: test musig tap placement rules
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  1e59936
- psbt: reject musig() descriptors until BIP373 support
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  a5e6f96
- plan: do not match musig() keys as signing assets
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  097e2f0
- miniscript: report musig() outside tr() with its own error
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  11de844

Commits

Commits on Oct 14, 2026